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Maniphest T60468

GPU tiles no longer get denoised
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Description

System Information
Operating system: Linux Mint 19.1
Graphics card: GTX 1080ti

Blender Version
Broken: All 2.79 and 2.80 builds since this commit
Worked: All current builds before

Short description of error
When rendering in hybrid mode tiles rendered by the GPU aren't denoised any more. CPU tiles are fine.
If I render in CPU mode all tiles are fine, in pure GPU mode all are noisy.
Here's a result when using hybrid mode:

Exact steps for others to reproduce the error

  • Load this scene:

Denoiser_Problem_v01.blend105 KBDownload

  • Press F12
  • See the noisy tiles inside the concave part of the cube

Event Timeline

Steffen Dünner (SteffenD) created this task.Jan 13 2019, 3:47 PM
Roel Koster (kostex) added a subscriber: Roel Koster (kostex).Jan 14 2019, 12:01 AM

Seems https://developer.blender.org/T60450 reports a similar situation due to that patch.
Here's an image of mine showing skipped denoising tiles.

reverting the patch denoises the image just fine (on Linux 18.04/NVidia 1050ti)

Brecht Van Lommel (brecht) closed this task as a duplicate of T60450: After denoising tiles rendered by GPU turn black (regression).Jan 14 2019, 4:03 AM